ClassUp lied to my credit card. We bought 24 classes for our two kids for the summer for $1,500, but we could not get a hold of the coordinator to change the original class schedule. When the summer ended and we had no classes used, we asked for a refund. The director texted me that he "really alarmed", but refused to refund us, saying the company "never as far as I know given a refund" even when ClassUp screwed up. When I disputed this charge with the credit card company, ClassUp told them that we were the ones who refused to communicate with them!